Trim device names (#2193)

Fixes: #2187

include/alpaka/dev/Traits.hpp

@@ -7,6 +7,8 @@
 #include "alpaka/core/Common.hpp"
 #include "alpaka/core/Concepts.hpp"
 
+#include <algorithm>
+#include <cctype>
 #include <cstddef>
 #include <string>
 #include <vector>
@@ -65,11 +67,22 @@ namespace alpaka
         return trait::GetDev<ImplementationBase>::getDev(t);
     }
 
-    //! \return The device name.
+    namespace detail
+    {
+        inline auto trim(std::string s) -> std::string
+        {
+            auto const pred = [](char c) { return !std::isspace(c); };
+            s.erase(std::find_if(rbegin(s), rend(s), pred).base(), end(s));
+            s.erase(begin(s), std::find_if(begin(s), end(s), pred));
+            return s;
+        }
+    } // namespace detail
+
+    //! \return The device name with leading/trailing space characters trimmed off.
     template<typename TDev>
     ALPAKA_FN_HOST auto getName(TDev const& dev) -> std::string
     {
-        return trait::GetName<TDev>::getName(dev);
+        return detail::trim(trait::GetName<TDev>::getName(dev));
     }
 
     //! \return The memory on the device in Bytes. Returns 0 if querying memory